152261317 has 4 divisors (see below), whose sum is σ = 163973740. Its totient is φ = 140548896.

The previous prime is 152261309. The next prime is 152261377. The reversal of 152261317 is 713162251.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28740321 + 123520996 = 5361^2 + 11114^2 .

It is a cyclic number.

It is not a de Polignac number, because 152261317 - 2³ = 152261309 is a prime.

It is a super-4 number, since 4×152261317⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152261377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5856192 + ... + 5856217.

It is an arithmetic number, because the mean of its divisors is an integer number (40993435).

Almost surely, 2^152261317 is an apocalyptic number.

It is an amenable number.

152261317 is a deficient number, since it is larger than the sum of its proper divisors (11712423).

152261317 is a wasteful number, since it uses less digits than its factorization.

152261317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11712422.

The product of its digits is 2520, while the sum is 28.

The square root of 152261317 is about 12339.4212587139. The cubic root of 152261317 is about 533.9859874191.

The spelling of 152261317 in words is "one hundred fifty-two million, two hundred sixty-one thousand, three hundred seventeen".